DW01A

Part: DW01A

Type: Single-Cell Li-ion/Li-polymer Battery Protection IC

Description: A high-accuracy overcharge and over-discharge protection circuit for single-cell rechargeable lithium batteries, integrating overvoltage charge protection, overvoltage discharge protection, and overcurrent discharge protection.

Operating Conditions:

• Supply voltage: 1.5–10 V
• Operating temperature: -40 to +85 °C
• Overvoltage Charge Protection Threshold (VOC): 4.300V
• Overvoltage Discharge Protection Threshold (VOD): 2.500V

Absolute Maximum Ratings:

• Max supply voltage: 10 V
• Max junction/storage temperature: 150 °C

Key Specs:

• Overvoltage Charge Protection Threshold (VOC): 4.300V (±50mV)
• Overvoltage Charge Recovery Threshold (VOCR): 4.100V (±50mV)
• Overvoltage Discharge Protection Threshold (VOD): 2.500V (±75mV)
• Overvoltage Discharge Recovery Threshold (VODR): 2.900V (±75mV)
• Overcurrent Discharge Protection Threshold (VEDI): 0.150V (±20mV)
• Overvoltage Charge Protection Delay Time (tOC): 110ms (±30%)
• Overvoltage Discharge Protection Delay Time (tOD): 55ms (±30%)
• Overcurrent Discharge Protection Delay Time (tEDI): 7.0ms (±30%)

Features:

• Ideal protection circuit for single-cell Li-ion or Li-polymer batteries
• High-accuracy protection voltage (overcharge/over-discharge) detection
• Selectable low power mode allowed or low power mode prohibited in over-discharge condition
• High-accuracy overcurrent discharge protection detection
• Battery short circuit protection
• Selectable detection voltages and delay times for various models
• Selectable 0V battery charging allowed / prohibited for different models
• Minimal external components
• Ultra-small SOT23-6 package

Applications:

• Charge and discharge protection circuit for lithium batteries
• High-accuracy protector for phone batteries or other lithium batteries

Package:

• SOT23-6

• Ideal protection circuit for single-cell Li-ion or Li-polymer batteries
• High-accuracy protection voltage (overcharge/over-discharge) detection
• Selectable low power mode allowed or low power mode prohibited in over-discharge condition
• High-accuracy overcurrent discharge protection detection
• Battery short circuit protection
• Selectable detection voltages and delay times for various models
• Selectable 0V battery charging allowed / prohibited for different models
• Minimal external components
• Ultra-small SOT23-6 package

• Charge and discharge protection circuit for lithium batteries
• High-accuracy protector for phone batteries or other lithium batteries

Figure -2 DW01A Pin Configuration (Not to Scale)

Figure -2 DW01A Pin Configuration (Not to Scale)

(Unless otherwise specified, typical values are tested under conditions: VDD = 3.6V, TA = 25 °C. Values marked with ' ' are for operating temperature: -40 °C ≤ TA ≤ 85 °C)

[Table-4] Electrical Characteristics

Storage Temperature

.........................................................

Power Dissipation PD ( TA=25 °C)

SOT23-6

Package (Thermal Resistance

Soldering Temperature (Reflow,

10

seconds)

-65

°C

~150

°C

°C

θJA=200

/W

)

.........

625mW

.......................................

260

°C

Note: Exceeding the listed absolute maximum ratings may cause permanent damage to the device. The values given above are only limit ranges; operation under such extreme conditions does not guarantee device specifications, and prolonged operation under these conditions may affect device reliability.